Our good friend Northarant has a free Hatsune Miku paper model (Vocaloid singing synthesizer series) listed, while you're there don't forget to check out the nice papercrafts that he's selling at his store.
Vocaloid - Hatsune Miku Paper Model [Download]
Touhou Project Papercraft [Related Pots]
Chibi Hatsune Miku Papercraft
Utada Hikaru Papercraft